A new cnc glass cutting machine cutter head assembly

Abstract

The invention discloses a tool bit assembly of a novel computerized numerical control (CNC) glass cutting machine, and relates to a tool bit of a cutting machine. The assembly consists of a tool chuck assembly at the front end, a tool bit assembly on the middle part and a motor at the top, wherein the tool bit assembly comprises a toolbar, one end of the toolbar is connected with the tool chuck assembly, and the other end of the toolbar is provided with a driven sleeve; the driven sleeve is connected with one end of a driving sleeve to form a whole through bolts, the other end of the driving sleeve is connected with the power output shaft of the motor, the toolbar is driven by the motor to rotate, and meanwhile, the toolbar moves up and down under the action of air pressure; a return pressure spring is arranged in the cavity of the driven sleeve, the return pressure spring is sleeved outside the toolbar, one end of the return pressure spring is contacted with a concave table arranged on the cavity of the driven sleeve, and the other end of the return pressure spring is contacted with a supporting ring; the supporting ring is just arranged at the joint of the toolbar and the driving sleeve; and a Y-shaped sealing ring is sleeved on the exterior of the supporting ring. The tool bit assembly has the advantages that: the original retainer ring is changed into the supporting ring and the Y-shaped sealing ring, the supporting ring and the Y-shaped sealing ring form two independent air cavities in the driven sleeve, and the pressure area of the supporting ring is improved by 3.5 times, so the stability of setting and cutting pressure of the tool bit is greatly improved.

Description

technical field [0001] The invention relates to a cutter head of a cutting machine, in particular to a novel cutter head assembly of a CNC glass cutting machine. Background technique [0002] In the prior art, the falling and cutting pressure of the cutter head of the CNC glass cutting machine is controlled and adjusted by air pressure, and the air pressure acts on the blade connected with the cutter rod with a certain pressure in the driven sleeve of the cutter head assembly. ring (see figure 1 ), so as to form a certain downward pressure to make the knife rod drop or maintain a certain cutting pressure. Since both the upper and lower sides of the upper retaining ring are under the pressure of air pressure, the pressure area acting on the retaining ring is the difference between the upper and lower exposed areas of the retaining ring, usually this area is only 2.3cm 2 , The pressure generated under the compressed air commonly used in the industry is very small. If the pre...

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